california, an hour east of los angeles you see unmarked police officers, officers in tactical gear, all around this area as the shooting again took place here early this morning. we'll start with the first crime scene which was in corona, california, about 15 miles to our south. late last night to early this morning, they haven't given us the exact time, it is believed, christopher dorner, the suspect ambushed two officers from l.a.p.d.. they were providing security for people who might be at threat for a shooting that happened in irvine. we'll get to that in a moment. those two officers were shot at. one was grazed and other was not injured. they returned fire. not long afterwards, one 30 in riverside, two officers at a stoplight, had nothing to do with a search, they were at a stoplight under normal patrol. they were ambushed and believed shot by dorner at close range. we know one of those officers was killed. the other one is in very critical condition in the hospital here in corona. last we heard he was still in surgery at this hour.